Children with autism spectrum disorder benefit from early, intensive interventions to improve social communication, and parent-implemented interventions are a feasible, family-centered way to increase treatment dosage. The success of such interventions is dependent on a parent's ability to implement the strategies with fidelity. However, measurement of parent strategy use varies across studies. Most studies use one of two types of observational coding measures (macro- and micro-codes). Macro-codes are known for being efficient while micro-codes are known for being precise. This study evaluates the reliability and validity of the "NDBI-Fi," a macro-code, compared to a micro-code. Parent-child interaction videos for 177 participants were used to compare these measures. Results demonstrated that the "NDBI-Fi" had strong inter-rater reliability. It also had strong convergent validity with the micro-code after intervention. In addition, the "NDBI-Fi" was sensitive to change, and it demonstrated precision comparable to the micro-code. Furthermore, a novel scoring procedure detected differences in parents who learned different intervention strategy types. However, the "NDBI-Fi" did not demonstrate strong validity before intervention, particularly when measuring responsive intervention strategies. Taken together, findings support the use of the "NDBI-Fi" as an outcome measure, and future work should focus on continued development of valid pre-intervention macro-codes.